Axially and angularly adjustable straight beam clamp



ML ZABICH Jan. 1, 1952 AXIALLY AND ANGULARLY ADJUSTABLE STRAIGHT BEAM CLAMP Filed Sept. 2, 1950 Patented Jan. 1, 1952 UNITED STATES PATENT OFFICE AXIALLY AND AN GULARLY ADJUSTABLE STRAIGHT BEAM CLAMP 1 Claim.

This invention relates to an alligator clamp for holding work pieces in place when glued or for other purposes.

It is an object of the present invention to provide an alligator clamp which is a self-contained unit and on which the adjustable clamp part can be changed and effected in an easy manner and wherein the tightening clamp part can be angled from an elevated position to a side position whereby the same can be positioned either on vertically extending parts or horizontally extending parts.

Other objects of the present invention are to provide a self-contained alligator clamp which is of simple construction, inexpensive to manufacture, has a minimum number of parts, easy to adjust, compact, easy to transport and emcient in operation.

For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which Fig. 1 is a perspective view of the clamp embodying the features of the present invention.

Fig. 2 is a fragmentary sectional view taken on line 2-2 of Fig. 1.

Fig. 3 is a longitudinal sectional view taken generally on line 33 of Fig. 1.

Fig. 4 is a fragmentary collective view showing the connection of the adjusting screw with the adjustable alligator clamp part.

Referring now to the figures, I represents a base having an enlarged elevated portion l I and a lowered portion 12. The elevated portion has a plurality of holes l2 therein of square formation adapted to receive the fixed clamp part or alligator jaw l3. This clamp part or alligator jaw is of square section adapted to fit the square openings I2. The openings l2 are longitudinally spaced from one another and on the side of the portion l I there may be provided similarly arranged square openings, as indicated at I4.

Secured to the top of the lowered portion 12 is a sleeve l5. Lugs l6 are provided on the sleeve and receive screws I! which will secure the sleeve IS in place upon the top face of the lowered portion [2. Also fixed to the lowered portion and rearwardly of the guide sleeve I is a threaded sleeve l 8 for receiving a threaded adjusting screw l9. This adjusting screw has a squared formation on its end to which a crank 2| is fitted to turn the screw. On the forward end of the screw If! is a head 22 adapted to receive a bifurcated or yoke formation 23 of a shank 24 of an alligator jaw 25. The forward end of the shank 24 is bent up to provide the jaw 25.

The shank 24 can be turned in the manner indicated by the arrows in Fig. 1 to one side or the other in order that it can be used when the jaw part I3 is disposed in the sides of the raised portion I I.

The clamp is used in the usual'manner and the boards are disposed between the jaws l3 and 25.

The sleeve I5 is raised at 26 to permit theturning of the bifurcated portion 23 of the shank 24.

While various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of the present invention as defined by the appended claim.

Having thus set forth and disclosed the nature of my invention, what is claimed is:

An alligator clamp comprising a supporting base having a raised portion and a lowered portion, a series of openings in the raised portion adapted to receive a jaw part, a guide sleeve secured to the lowered portion, a clamp part having a round shank axially and rotatably adjustable in the guide sleeve and having a raised jaw portion at its outwardly protruding forward end, an internally threaded sleeve secured to the lowered portion in rear of the guide sleeve, an adjusting screw adjustable in the internally threaded sleeve and a swivel connection between the inner end of the adjustable screw and the inner end of the jaw shank, whereby said raised jaw portion may be turned to engage work placed on either the sides or the top of the raised portion of the base.

MARTIN ZABICH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 14,390 Clapp Mar. 11, 1856 572,725 Schweitzer Dec. 9, 1896 727,986 Makowsky May 12, 1903 990,186 Berg Apr. 18, 1911 

